Stilton, Geronimo. Mouse overboard! / Geronimo Stilton ; illustrations by Danilo Loizedda (design) and Christian Aliprandi (color) ; translated by Lidia Morson Tramontozzi. - 107 pages : color illustrations, color map ; 20 cm Translation of: Allarme... topo in mare! Segrate, Italy : Edizioni Piemme, 2014. When Geronimo Stilton and his family retrace the journey of explorer Vasco da Gama, Geronimo investigates who is sabotaging the voyage. Reading level: grade 4. Translated from the Italian. ISBN: 9780545872515 (pbk.) LCCN: 2015043315 Subjects--Personal Names: Gama, Vasco da, 1469-1524 --Juvenile fiction. Subjects--Topical Terms: Mice--Juvenile fiction.Voyages and travels--Juvenile fiction.Adventure and adventurers--Juvenile fiction.